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Development of a methodology using gas chromatography-combustion-isotope ratio mass spectrometry for the determination of the carbon isotope ratio of caffeine extracted from tea leaves (Camellia sinensis)

✍ Scribed by Chen Wu; Keita Yamada; Osamu Sumikawa; Akiko Matsunaga; Alexis Gilbert; Naohiro Yoshida

Book ID: 112185841
Publisher: John Wiley and Sons
Year: 2012
Tongue: English
Weight: 397 KB
Volume: 26
Category: Article
ISSN: 0951-4198
DOI: 10.1002/rcm.6177

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## Abstract This study was directed towards investigating suitable compounds to be used as stable isotope reference materials for gas chromatography combustion isotope ratio mass spectrometry (GC‐C‐IRMS) calibration. Several compounds were selected from those used in the ‘Grob‐test’ mixture. Oxygen